Air intake for a motorcycle



FIG. 1 is a front elevational view of an air intake for a motorcycle showing our new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is an enlarged front elevational view thereof;

FIG. 4 is an enlarged left side elevational view thereof; and,

FIG. 5 is an enlarged perspective view thereof.

The rear elevational view is a mirror image of the front elevational view, and the broken lines illustrate portions of the motorcycle that form no part of the claimed design. 

The ornamental design for, an air intake for a motorcycle, as shown and described. 